@ARTICLE{Sočo_Eleonora_Multi-component_2020,
 author={Sočo, Eleonora and Pająk, Dariusz and Kalembkiewicz, Jan},
 volume={vol. 46},
 number={No 1},
 pages={62-75},
 journal={Archives of Environmental Protection},
 howpublished={online},
 year={2020},
 publisher={Polish Academy of Sciences},
 abstract={The presented work introduces a simple modification of coal fl y ash (FA) with 30% solution of H 20 2, used as a new efficient sorbent for the removal of organic dye crystal violet (CV) in the presence of Cu(II) ions in single- and bi-component systems Cu(II)-CV. FT-IR, TG, SEM-EDS, and XRD suggested that the mechanism of Cu(II) and CV sorption onto FA-H 2O 2 includes ion-exchange and surface adsorption process. Comparing the values of the reduced chi-square test (χ 2/DoF) and the determination coefficient R 2 obtained for CV of the considered isotherms, the fitting degree follows the sequence: Jovanović > Langmuir > Elovich > Freundlich > Redlich-Peterson (R-P) > Tóth > Halsey > BET. Sorption of Cu(II) ions in a single system by means of FA-H 2O 2 was well fi tted by the Langmuir and R-P model. The studies of equilibrium in a bi-component system by means of extended Langmuir (EL), extended Langmuir-Freundlich (ELF), and Jain-Snoeyink (JS) models were analysed. The estimation of parameters of sorption isotherms in a bi-component system Cu(II)-CV has shown that the best of fi t calculated values of experimental data for both sorbates have been the EL model and the JS model, but only in the case of a CV dye. The sorption kinetic of Cu(II) and CV onto FA-H 2O 2 was discussed by means of the PFO, PSO, and intra-particle diff usion models.},
 type={Article},
 title={Multi-component sorption and utilization of solid waste to simultaneous removing basic dye and heavy metal from aqueous system},
 URL={http://journals.pan.pl/Content/115793/PDF/Arch_vol46_pp62_75.pdf},
 doi={10.24425/aep.2020.132527},
 keywords={heavy metal, immobilization, sorption, waste materials, bi-component system, basic dye},
}